#!/bin/bash
#
#  BLIS    
#  An object-based framework for developing high-performance BLAS-like
#  libraries.
#
#  Copyright (C) 2013, The University of Texas
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are
#  met:
#   - Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#   - Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   - Neither the name of The University of Texas nor the names of its
#     contributors may be used to endorse or promote products derived
#     from this software without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
#  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
#  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#

#
# Makefile
#
# Field G. Van Zee
# 
# Makefile for standalone BLIS test drivers.
#

#
# --- Makefile PHONY target definitions ----------------------------------------
#

.PHONY: all bin clean \
        check check-config check-make-defs



#
# --- Makefile initialization --------------------------------------------------
#

# Define the name of the configuration file.
CONFIG_MK_FILE    := config.mk

# Define the name of the file containing build and architecture-specific
# makefile definitions.
MAKE_DEFS_FILE    := make_defs.mk

# Locations of important files.
ROOT_PATH         := ..
CONFIG_DIR        := config



#
# --- Include makefile configuration file --------------------------------------
#

# Construct the path to the makefile configuration file that was generated by
# the configure script.
CONFIG_MK_PATH    := $(ROOT_PATH)/$(CONFIG_MK_FILE)

# Include the configuration file.
-include $(CONFIG_MK_PATH)

# Detect whether we actually got the configuration file. If we didn't, then
# it is likely that the user has not yet generated it (via configure).
ifeq ($(strip $(CONFIG_MK_INCLUDED)),yes)
CONFIG_MK_PRESENT := yes
else
CONFIG_MK_PRESENT := no
endif

# Now we have access to CONFIG_NAME, which tells us which sub-directory of the
# config directory to use as our configuration.
CONFIG_PATH       := $(ROOT_PATH)/$(CONFIG_DIR)/$(CONFIG_NAME)



#
# --- Include makefile definitions file ----------------------------------------
#

# Construct the path to the makefile definitions file residing inside of
# the configuration sub-directory.
MAKE_DEFS_MK_PATH := $(CONFIG_PATH)/$(MAKE_DEFS_FILE)

# Include the makefile definitions file.
-include $(MAKE_DEFS_MK_PATH)

# Detect whether we actually got the make definitios file. If we didn't, then
# it is likely that the configuration is invalid (or incomplete).
ifeq ($(strip $(MAKE_DEFS_MK_INCLUDED)),yes)
MAKE_DEFS_MK_PRESENT := yes
else
MAKE_DEFS_MK_PRESENT := no
endif



#
# --- BLAS and LAPACK implementations ------------------------------------------
#

# BLIS library and header path. This is simply wherever it was installed.
BLIS_LIB_PATH  := $(INSTALL_PREFIX)/lib
BLIS_INC_PATH  := $(INSTALL_PREFIX)/include

# BLIS library.
BLIS_LIB       := $(BLIS_LIB_PATH)/libblis.a

# BLAS library path(s). This is where the BLAS libraries reside.
#BLAS_LIB_PATH  := $(HOME)/flame/lib

# OpenBLAS, ATLAS, and MKL libraries.
#BLAS_LIB       := $(LIB_PATH)/libblas.a
#BLAS_LIB       := $(LIB_PATH)/libgoto.a
#BLAS_LIB       := $(LIB_PATH)/libgoto2.a
#OPENBLAS_LIB   := $(BLAS_LIB_PATH)/libopenblas.a
#ATLAS_LIB      := $(BLAS_LIB_PATH)/libf77blas.a \
#                  $(BLAS_LIB_PATH)/libatlas.a
#MKL_LIB        := -L/opt/intel/mkl/10.2.2.025/lib/em64t/ \
#                  -lmkl_sequential -lmkl_core -lmkl_intel_lp64



#
# --- Optional overrides -------------------------------------------------------
#

# Uncomment and modify these definitions if you wish to override the values
# present in the current BLIS configuration's makefile definitions file
# (ie: config/<configname>/make_defs.mk).
# CC             := gcc
# LINKER         := $(CC)
# CFLAGS         := -g -O2 -Wall -Wno-comment
# LDFLAGS        := 
# INSTALL_PREFIX := $(HOME)/blis



#
# --- General build definitions ------------------------------------------------
#

TEST_SRC_PATH  := src
TEST_OBJ_PATH  := obj

# Gather all local object files.
TEST_OBJS      := $(patsubst $(TEST_SRC_PATH)/%.c, \
                             $(TEST_OBJ_PATH)/%.o, \
                             $(wildcard $(TEST_SRC_PATH)/*.c))

# Binary executable name.
TEST_BIN       := test_libblis.x

# Add installed and local header paths to CFLAGS
CFLAGS         += -I$(BLIS_INC_PATH) -I$(TEST_SRC_PATH)

LINKER         := $(CC)
#LDFLAGS        := -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -lgfortranbegin -lgfortran -lm
#LDFLAGS        += -lpthread
LDFLAGS        := -L/usr/lib/gcc/i486-linux-gnu/4.4.3 -L/usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib/gcc/i486-linux-gnu/4.4.3/../../.. -L/usr/lib/i486-linux-gnu -lgfortranbegin -lgfortran -lm



#
# --- Targets/rules ------------------------------------------------------------
#

# --- Primary targets ---

all: check bin

bin: check $(TEST_BIN)


# --- Environment check rules ---

check: check-config check-make-defs

check-config:
ifeq ($(CONFIG_MK_PRESENT),no)
	$(error Cannot proceed: config.mk not detected! Run configure first)
endif

check-make-defs: check-config
ifeq ($(MAKE_DEFS_MK_PRESENT),no)
	$(error Cannot proceed: make_defs.mk not detected! Invalid configuration)
endif


# --Object file rules --

$(TEST_OBJ_PATH)/%.o: $(TEST_SRC_PATH)/%.c
	$(CC) $(CFLAGS) -c $< -o $@


# -- Executable file rules --

$(TEST_BIN): $(TEST_OBJS) $(BLIS_LIB)
	$(LINKER) $(TEST_OBJS) $(BLIS_LIB) $(LDFLAGS) -o $@


# -- Clean rules --

clean:
	- $(RM_F) $(TEST_OBJS) $(TEST_BIN)

